my low resolution texture is blurred. i tried sampling=nearest. msaa=off

[homebrewmellow]

let texture_handle = asset_server.load("oilrig_tex.png");
    
    // Ensure nearest neighbor filtering
    if let Some(image) = images.get_mut(&texture_handle) {
        image.texture_descriptor.format = bevy::render::render_resource::TextureFormat::Rgba8UnormSrgb;
        image.texture_descriptor.mip_level_count = 1; // No mipmaps
        image.sampler = ImageSampler::Descriptor(ImageSamplerDescriptor {
            mag_filter: ImageFilterMode::Nearest,
            min_filter: ImageFilterMode::Nearest,
            mipmap_filter: ImageFilterMode::Nearest,
            ..default()
        });
    }

let material = materials.add(StandardMaterial {
        base_color_texture: Some(texture_handle.clone()),
        unlit: true,
        ..default()
    });

commands.spawn((
        Mesh3d(mesh_handle),
        MeshMaterial3d(material),
        ));

to turn off msaa i even tried using the deprecated Camera3dBundle

commands.spawn((Camera3dBundle { 
        msaa: Msaa::Off,
        transform: Transform::from_xyz(-2.5, 12.5, 14.0).looking_at(Vec3::ZERO, Vec3::Y),
        ..Default::default()
    }));

I don't know what to try anymore. Please help

[rparrett]

It's a bit hard to say from the collection of code excerpts, but I'd wager that you're getting hit by the annoying "materials don't update when their texture handles change" issue.

Here are some things you can try:

• Intentionally / manually trigger change detection on the material after the texture has been updated.
• Even better, use load_with_settings to get the right filter modes on your texture asset from the beginning.

[homebrewmellow]

pub fn load_with_settings<'a, A: Asset, S: Settings>(
        &self,
        path: impl Into<AssetPath<'a>>,
        settings: impl Fn(&mut S) + Send + Sync + 'static,
    ) -> Handle<A>

i don't know how to use this function signature. i can't create a Settings type. Settings is a trait. so do i have to use a trait object?

[rparrett]

There is a relevant usage example in the docs, but check out the asset_settings example if that's not in-depth enough.

[homebrewmellow]

change:
let texture_handle = asset_server.load("oilrig_tex.png");
to

let texture_handle = asset_server.load_with_settings("oilrig_tex.png", |settings: &mut ImageLoaderSettings| {
        settings.sampler = ImageSampler::nearest();
    });